E52047A52C – ELMOS

The E520.47A52C, manufactured by ELMOS, is a dual-bridge capacitive pressure sensor signal processor (SSP) IC designed for automotive and industrial applications. It incorporates two independent sensor front-ends, each capable of interfacing with a capacitive pressure sensing element. Each channel features a high-resolution analog-to-digital converter (ADC) with selectable oversampling rates, enabling precise pressure measurements. The device integrates digital compensation algorithms for offset, sensitivity, and temperature drift, ensuring accurate and stable performance across a wide operating temperature range. The E520.47A52C communicates via a standard SPI interface, allowing for seamless integration with microcontrollers. Diagnostic features include sensor open/short detection and internal self-test capabilities, enhancing system reliability. The integrated bridge excitation voltage is programmable, optimizing sensor performance for varying pressure ranges and sensitivity requirements.